embed: add confirm/cancel actions to touch events

embed/extmod/modtrezorio/modtrezorio.c

@@ -54,8 +54,10 @@ STATIC const mp_rom_map_elem_t mp_module_trezorio_globals_table[] = {
 
     { MP_ROM_QSTR(MP_QSTR_TOUCH), MP_OBJ_NEW_SMALL_INT(TOUCH_IFACE) },
     { MP_ROM_QSTR(MP_QSTR_TOUCH_START), MP_OBJ_NEW_SMALL_INT((TOUCH_START >> 24) & 0xFFU) },
-    { MP_ROM_QSTR(MP_QSTR_TOUCH_MOVE), MP_OBJ_NEW_SMALL_INT((TOUCH_MOVE   >> 24) & 0xFFU) },
-    { MP_ROM_QSTR(MP_QSTR_TOUCH_END), MP_OBJ_NEW_SMALL_INT((TOUCH_END     >> 24) & 0xFFU) },
+    { MP_ROM_QSTR(MP_QSTR_TOUCH_MOVE), MP_OBJ_NEW_SMALL_INT((TOUCH_MOVE >> 24) & 0xFFU) },
+    { MP_ROM_QSTR(MP_QSTR_TOUCH_END), MP_OBJ_NEW_SMALL_INT((TOUCH_END >> 24) & 0xFFU) },
+    { MP_ROM_QSTR(MP_QSTR_TOUCH_CONFIRM), MP_OBJ_NEW_SMALL_INT((TOUCH_CONFIRM >> 24) & 0xFFU) },
+    { MP_ROM_QSTR(MP_QSTR_TOUCH_CANCEL), MP_OBJ_NEW_SMALL_INT((TOUCH_CANCEL >> 24) & 0xFFU) },
 };
 
 STATIC MP_DEFINE_CONST_DICT(mp_module_trezorio_globals, mp_module_trezorio_globals_table);

embed/trezorhal/touch.h

@@ -22,9 +22,11 @@
 
 #include <stdint.h>
 
-#define TOUCH_START (1U << 24)
-#define TOUCH_MOVE  (2U << 24)
-#define TOUCH_END   (4U << 24)
+#define TOUCH_START     (1U << 24)
+#define TOUCH_MOVE      (1U << 25)
+#define TOUCH_END       (1U << 26)
+#define TOUCH_CONFIRM   (1U << 27)
+#define TOUCH_CANCEL    (1U << 28)
 
 void touch_init(void);
 void touch_power_on(void);

embed/unix/touch.c

@@ -67,11 +67,17 @@ uint32_t touch_read(void)
                 }
                 break;
             case SDL_KEYUP:
-                if (event.key.keysym.sym == SDLK_ESCAPE) {
-                    __shutdown();
-                }
-                if (event.key.keysym.sym == SDLK_p) {
-                    display_save("emu");
+                switch (event.key.keysym.sym) {
+                    case SDLK_ESCAPE:
+                        __shutdown();
+                        break;
+                    case SDLK_p:
+                        display_save("emu");
+                        break;
+                    case SDLK_RIGHT:
+                        return TOUCH_CONFIRM;
+                    case SDLK_LEFT:
+                        return TOUCH_CANCEL;
                 }
                 break;
             case SDL_QUIT: